Interpretation of Both Electron Pushing and Electron Withdrawing Inductive Effect of Alkyl Groups in Terms of Mulliken-Jaffe's Charge Coefficient Parameters (b)
Alkyl groups can delocalize both the negative and positivecharges through ion (charge)-induced dipole interaction withthe polarizable alkyl groups. This charge induced polarizationof the alkyl group to delocalize the charge is the origin of
‘inductive effect’ of the alkyl groups. The apparent less efficiencyin negative charge delocalization compared to positivecharge delocalization by a particular alkyl group is attributedto the less polarizing field strength of the anionic charge.
